Multi Pro 1200/1250Page 9 -- 16Sonic Boom System (Optional Kit)
Troubleshooting
Foreffectivetroubleshootingand repairs,theremustbe
agoodunderstanding of theelectricalcircuits and com-
ponents used on the Sonic Boom System (see Sonic
Boom System Operation in this chapter).
NOTE: When troubleshooting an electrical problem on
yourSonicBoomSystem,refertoinformationregarding
the sonic boom light in this section. Also, use the Diag-
nostic Display (see Special Tools in this chapter) to test
electronic control unit (ECU) inputs and outputs.
Sonic Boom Light
The Sonic Boom System is designed to automatically
adjustthesprayerboomheightifchangesintheturfs ur-
facearedetected.Thesonicboomlightshouldbeillumi-
natedwheneverthevehicleignitionswitchisONandthe
sonic boom switch is in either the automatic or manual
position.
The sonic boom light flashing quickly indicates that the
Sonic Boom System is in the calibration mode. This
modeallowsthespray booms tobeadjustedforthe de-
siredboomheight.Thecalibrationmodelastsfortwenty
(20) seconds after w hich the boom light should quit
flashing.
NOTE: A sequence ofswitchmovements isnecessary
to engage the calibration mode. Refer to the Sonic
Boom Kit Installation Instructions for this sequence.
Thesonicboomlightflashingslowlyindicatesthatasys-
tem error has been encountered. If the boom light is
flashing slowly, lower the affected boom(s) with the
boom actuator switch(es) to clear the error. If the error
continues, there may be an issue with the Sonic Boom
System electronic control unit (ECU). Ifthis occurs,see
Diagnostic Display and Troubleshooting Chart in this
section.
1. Dash panel 2. Boom light location
Figure 6
2
1
Sonic Boom Calibration
TheSonicBoom sensorcalibrationprocessis critical to
the correct operation of the Sonic Boom system. The
calibration process establishes the sensor target dis-
tance between the boom and the turfsurface.Typically,
thisdistanceisapproximatelytwenty(20) inches.Steps
needed for proper calibration are identified in the Sonic
Boom Kit Installation Instructions.
While calibrating the Sonic Boom sensors, it is best to
perform the calibration process on turf. A shiny surface
(e.g.cementshopfloor) c an skewsensor signals.Also,
ensurethecalibrationareaisfreeofbuildings,trees,un-
derground plumbing and other machines that could in-
terfere with sensor signals.
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